Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit, and belongs to the technical field of air conditioners. According to the air conditioner indoor unit, an air return opening and an air outlet are formed in a shell and distributed in the circumferential direction of the shell; the fan is arranged in the shell and is close to the air outlet; the indoor heat exchanger is arranged on the side, relatively away from the air outlet, of the fan. The air outlets comprise the first air outlet and the second air outlet, the first air outlet and the second air outlet are formed in the side wall, opposite to the leeward side of the indoor heat exchanger, of the shell, and the first air outlet is located above the second air outlet. The first air valve and the second air valve are arranged on the shell; the two different air outlets are formed in the same side wall of the shell to output the refrigerating airflow or the heating airflow correspondingly, the first air valve and the second air valve are used for controlling the corresponding first air outlet or the corresponding second air outlet to be opened for air outlet, and therefore the two kinds of airflow evenly cover the whole room, and the comfort of a human body is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner indoor unit. BACKGROUND

[0002] Air conditioner refers to the device for artificially adjusting and controlling the parameters of air in the environment of buildings or structures, such as temperature, humidity, and flow rate. Air conditioner usually includes an indoor unit and an outdoor unit.

[0003] At present, the air conditioner indoor unit usually includes one return air inlet and one air outlet, and the air duct structure is fixed. When the air conditioner indoor unit is used for cooling or heating, the cooling air flow is prone to sink compared to indoor air, and the heating air flow is prone to float compared to indoor air.

[0004] However, if the air outlet is set to horizontal air outlet, it is beneficial to the cooling air flow to blow from top to bottom in the room, so that the cooling air flow uniformly covers the room, while the heating air flow will float at the top of the room, which cannot achieve the effect of uniformly covering the room with the heating air flow. On the contrary, if the air outlet is set to downward air outlet, the effect of uniformly covering the room with the cooling air flow cannot be achieved.

[0005] Therefore, based on the above technical solution, there is inevitably a situation that the cooling air flow or the heating air flow is not easy to uniformly cover the entire room when cooling or heating, thereby reducing the comfort of the human body. CONTENT OF THE INVENTION

[0006] The present application provides an air conditioner indoor unit, which sets two different air outlets on the same side wall of the shell to output cooling air flow or heating air flow respectively, and controls the opening of the corresponding first air outlet or second air outlet to blow air through the first air valve and the second air valve, so that the output direction of the heating air flow is toward the lower part of the shell based on the second air outlet, and the cooling air flow is output in the horizontal direction based on the first air outlet, thereby making the two air flows uniformly cover the entire room and improving the comfort of the human body.

[0007] In one aspect, an air conditioner indoor unit is provided, comprising:

[0008] A shell is provided, and a return air inlet and an air outlet are arranged on the shell, and the return air inlet and the air outlet are distributed along the circumference of the shell;

[0009] A fan is arranged in the shell, and the fan is arranged close to the air outlet;

[0010] An indoor heat exchanger is arranged on the side of the fan away from the air outlet, and is used for exchanging heat with the air flow passing through it;

[0011] The air outlet comprises a first air outlet and a second air outlet, the first air outlet and the second air outlet are arranged on the side wall of the shell opposite to the leeward side of the indoor heat exchanger, the first air outlet is located above the second air outlet, the first air outlet faces the horizontal direction to output the refrigeration airflow, and the second air outlet faces the lower side of the shell to output the heating airflow.

[0012] A first air valve is arranged on the shell and used for opening or closing the air outlet of the first air outlet.

[0013] A second air valve is arranged on the shell and used for opening or closing the air outlet of the second air outlet.

[0014] When the first air valve is closed and the second air valve is opened, the airflow is output from the second air outlet to the lower side of the shell by the operation of the fan.

[0015] When the second air valve is closed and the first air valve is opened, the airflow is output from the first air outlet to the horizontal direction away from the shell by the operation of the fan.

[0016] In the air conditioner indoor unit of the present application, the first air outlet and the second air outlet arranged on the same side wall of the shell are used to output the refrigeration airflow or the heating airflow in different directions respectively, and the first air valve and the second air valve are used to control the opening of the air outlet of the corresponding first air outlet or second air outlet, so that the two airflows output by the same air conditioner indoor unit can cover the entire room, thereby improving the comfort of human body.

[0017] In some embodiments, the air return port is arranged on the side wall of the shell opposite to the first air outlet or the second air outlet.

[0018] Based on the above technical solution, the air return port is arranged on the rear end surface of the shell opposite to the first air outlet, so that a good air circulation path is formed, and the refrigeration or heating airflow can flow rapidly in the indoor space, thereby improving the working efficiency of the air conditioner.

[0019] In some embodiments, the air return port is arranged on the bottom wall of the shell.

[0020] Based on the above technical solution, the rear end surface of the air conditioner indoor unit is used for installation, which will not affect the air return of the air return port from the bottom of the shell, so that the installation position of the air conditioner indoor unit is more flexible.

[0021] In some embodiments, the indoor heat exchanger is arranged in the shell in an inclined manner, one end of the indoor heat exchanger is inclined towards the direction close to the fan, and the other end is inclined towards the direction close to the air return port.

[0022] Based on the above technical scheme, the indoor heat exchanger is inclined in the shell to save the installation space in the shell, and the condensed water is guided to the lower end of the indoor heat exchanger, so that the condensed water is easily collected.

[0023] In some embodiments, the air conditioner indoor unit further comprises a water pan arranged on one side of the indoor heat exchanger connected to the bottom of the shell, for receiving the condensed water condensed on the indoor heat exchanger.

[0024] Based on the above technical scheme, the water pan is used to collect the condensed water, so as to avoid water dripping from the air conditioner indoor unit.

[0025] In some embodiments, the first air valve comprises a first baffle, which is turned upward to open the first air outlet, so that the refrigeration airflow is horizontally output in a direction away from the shell, and the first baffle is turned downward to close the first air outlet.

[0026] Based on the above technical scheme, the first baffle is arranged to guide the refrigeration airflow to be output in the horizontal direction, and the first baffle is turned to open or close the first air outlet.

[0027] In some embodiments, the second air valve comprises a second baffle, which is turned upward to open the second air outlet, so that the heating airflow is output below the shell, and the second baffle is turned downward to close the second air outlet.

[0028] Based on the above technical scheme, the second baffle is arranged to guide the heating airflow to be output below the shell, and the second baffle is turned to open or close the second air outlet.

[0029] In some embodiments, one side of the shell where the air outlet is arranged is a through opening, the first air valve is rotationally connected to the upper edge of the through opening, and the second air valve is rotationally connected to the lower edge of the through opening; when the first air valve is opened and the second air valve is closed, the first air outlet is formed at the through opening; when the first air valve is closed and the second air valve is opened, the second air outlet is formed at the through opening.

[0030] Based on the above technical scheme, the first air valve and the second air valve are used to shield or open the through opening, so as to form the first air outlet or the second air outlet for air outlet.

[0031] In some embodiments, the fan is located between the first air outlet and the second air outlet, and is used to send air to the first air outlet or the second air outlet.

[0032] Based on the above technical scheme, the air volume of the fan when sending air to the first air outlet or the second air outlet is equal.

[0033] In another aspect, an air conditioner indoor unit is provided, comprising:

[0034] a housing, the housing being provided with a return air inlet and an air outlet, the return air inlet and the air outlet being distributed along a circumference of the housing;

[0035] a fan, the fan being provided in the housing, the fan being arranged close to the air outlet;

[0036] an indoor heat exchanger, the indoor heat exchanger being arranged on a side of the fan opposite to the air outlet, for exchanging heat with air flow passing therethrough;

[0037] the air outlet comprises a first air outlet and a second air outlet, the first air outlet and the second air outlet being arranged on a side wall of the housing opposite to a leeward side of the indoor heat exchanger, the first air outlet being located above the second air outlet, the first air outlet being directed towards a horizontal direction to output cooling air flow, and the second air outlet being directed towards a lower side of the housing to output heating air flow;

[0038] a damper module, the damper module being configured to open or close the first air outlet and the second air outlet;

[0039] when the damper module closes the first air outlet and opens the second air outlet, air flow is output from the second air outlet to the lower side of the housing by operating the fan;

[0040] when the damper module closes the second air outlet and opens the first air outlet, air flow is output from the first air outlet to a horizontal direction away from the housing by operating the fan.

[0041] According to the above technical solution, the first air outlet and the second air outlet are opened or closed by the damper module, so that the first air outlet and the second air outlet output cooling air flow or heating air flow respectively, and both kinds of air flow output by the same air conditioner indoor unit can cover the entire room, thereby improving the comfort of human body. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 a structure schematic diagram of an air conditioner indoor unit adopting a rear return air mode according to some embodiments is shown;

[0043] Figure 2 a schematic diagram of an air conditioner indoor unit adopting a rear return air mode when operating in a cooling mode according to some embodiments is shown;

[0044] Figure 3 a schematic diagram of an air conditioner indoor unit adopting a rear return air mode when operating in a heating mode according to some embodiments is shown;

[0045] Figure 4 a structure schematic diagram of an air conditioner indoor unit adopting a lower return air mode according to some embodiments is shown;

[0046] Figure 5 Fig. 1 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in cooling operation with a lower return air mode;

[0047] Figure 6 Fig. 2 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in heating operation with a lower return air mode;

[0048] Figure 7 Fig. 3 shows a structural diagram of an air conditioner indoor unit according to some embodiments with a bent indoor heat exchanger;

[0049] Figure 8 Fig. 4 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in cooling operation with a bent indoor heat exchanger;

[0050] Figure 9 Fig. 5 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in heating operation with a bent indoor heat exchanger;

[0051] Figure 10 Fig. 6 shows a structural diagram of an air conditioner indoor unit according to some embodiments with a through opening in the shell;

[0052] Figure 11 Fig. 7 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in cooling operation with a through opening in the shell;

[0053] Figure 12 Fig. 8 shows a schematic diagram of an air conditioner indoor unit according to some embodiments in heating operation with a through opening in the shell.

[0054] In the above figures, 100, shell; 101, first air outlet; 102, second air outlet; 103, return air inlet; 200, fan; 300, indoor heat exchanger; 400, first air valve; 500, second air valve; 600, water pan. DETAILED DESCRIPTION

[0055] In order to make the purpose and implementation of the present application more clear, the following will combine the drawings in the exemplary embodiments of the present application to clearly and completely describe the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0056] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise specified and limited.

[0058] In the description of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been adjusted and heat exchanged.

[0060] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0061] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0062] The outdoor unit of the air conditioner refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0063] The indoor heat exchanger and the outdoor heat exchanger are used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0064] The utility model provides a kind of air conditioner indoor unit, it is related to air conditioning technical field, below referring to attached Figures 1-12 Air conditioner indoor unit is explained.

[0065] Reference attached Figures 1 to 12 , an air conditioner indoor unit includes shell 100, shell 100 is hollow inside and is used as the main structure of air conditioner indoor unit, shell 100 uses high-strength engineering plastics or sheet metal.

[0066] Shell 100 not only plays a protective role, but also realizes the reasonable guidance of airflow by opening return air inlet 103 and air outlet.

[0067] Return air inlet 103 is used to absorb the dirty air in the room, and the air outlet is responsible for sending the treated fresh air back to the room to ensure the effective circulation and circulation of indoor air and improve the refrigeration or heating effect of indoor air conditioner.

[0068] Reference attached Figures 1 to 12 , an air conditioner indoor unit includes fan 200, fan 200 is arranged in shell 100, and fan 200 is arranged close to air outlet.

[0069] Fan 200 is cross-flow fan 200, and cross-flow fan 200 has the advantages of low noise and high air volume, so it is suitable for occasions that require quietness and high air volume.

[0070] Cross-flow fan 200 can generate relatively uniform airflow, so that the temperature of each area in the room is more balanced, and the comfort is improved.

[0071] Cross-flow fan 200 can maintain a low noise level and provide a quiet environment for users.

[0072] Reference attached Figure 2 , Figure 5 , Figure 8 , Figure 11 , in some embodiments of the application, the air outlet provided on the shell 100 includes a first air outlet 101, and the first air outlet 101 faces the horizontal direction.

[0073] The first air outlet 101 is arranged on the side wall of the shell 100 opposite to the leeward side of the indoor heat exchanger 300, and the first air outlet 101 is used to output the refrigeration airflow horizontally away from the shell 100.

[0074] Reference attached Figure 3 ,Figure 6 、 Figure 9 、 Figure 12 The air outlet provided on the shell 100 further comprises a second air outlet 102, which is directed towards the lower part of the shell 100.

[0075] The second air outlet 102 is provided on the side wall of the shell 100 opposite to the leeward side of the indoor heat exchanger 300, and is used to output the heating airflow to the lower part of the shell 100.

[0076] The first air outlet 101 is located above the second air outlet 102.

[0077] When the fan 200 drives the airflow to the first air outlet 101 and the second air outlet 102, the first air outlet 101 located above the second air outlet 102 can directly output the cooling airflow horizontally away from the shell 100.

[0078] When the fan 200 drives the airflow to the first air outlet 101 and the second air outlet 102, the second air outlet 102 located below the first air outlet 101 is more convenient to output the heating airflow to the lower part of the shell 100.

[0079] Referring to the accompanying drawings, Figure 2 and Figure 3 In some embodiments of the present application, the fan 200 is located between the first air outlet 101 and the second air outlet 102.

[0080] The distance from the output end of the fan 200 to the first air outlet 101 and the second air outlet 102 is ensured to be equal.

[0081] The fan 200 can deliver the cooling airflow or the heating airflow to the first air outlet 101 or the second air outlet 102, so as to ensure that the airflow delivered to the first air outlet 101 and the second air outlet 102 is the same.

[0082] Thus, the cooling airflow output in the cooling mode is equivalent to the heating airflow output in the heating mode.

[0083] Referring to the accompanying drawings, Figures 1 to 3 In some embodiments of the present application, the return air inlet 103 is provided on the side wall of the shell 100 opposite to the first air outlet 101 or the second air outlet 102.

[0084] That is, the first air outlet 101, the second air outlet 102 and the return air inlet 103 are provided at opposite ends of the shell 100. The outlet airflow and the return airflow flow in parallel and opposite directions, reducing airflow short circuit and turbulence, and improving air circulation efficiency.

[0085] In the cooling mode, the indoor air conditioner outputs air horizontally through the first air outlet 101.

[0086] The air flow is a horizontal blowing refrigeration air flow. The refrigeration air flow and the return air flow at the return air inlet 103 on the shell 100 form a transverse circulation to accelerate the overall circulation of indoor air.

[0087] In the heating mode, the indoor air conditioner blows air to the lower part of the shell 100 through the second air outlet 102.

[0088] The air flow is a downward blowing heating air flow. After the natural upward of the heating air flow, the heating air flow is sucked into the return air inlet 103 at a relatively high position, and the circulation of the heating air flow is completed according to the flow characteristics of the heating air flow.

[0089] Referring to the accompanying drawings Figures 4 to 6 In some embodiments of the present application, the return air inlet 103 is arranged on the bottom wall of the shell 100.

[0090] In the cooling mode, the indoor air conditioner blows air horizontally through the first air outlet 101.

[0091] The air flow is a refrigeration air flow with a density greater than that of indoor air.

[0092] The refrigeration air flow sinks after blowing out a predetermined distance in the horizontal direction, and the return air flow at the return air inlet 103 is separated from the sinking position of the refrigeration air flow by a predetermined distance. The air circulation does not affect each other, and the overall circulation of indoor air is accelerated.

[0093] In the heating mode, the indoor air conditioner blows air to the lower part of the shell 100 through the second air outlet 102.

[0094] The air flow is a heating air flow with a density less than that of indoor air.

[0095] After the heating air flow blows out to the lower part of the shell 100 and then naturally rises, the heating air flow is sucked into the return air inlet 103 at the bottom of the shell 100. The phenomenon of the accumulation of hot air at the top is reduced, so that the heating is uniform.

[0096] In addition, when the rear end surface of the air conditioner indoor unit is used for installation, the return air inlet from the bottom of the shell 100 will not be affected, so that the installation position of the air conditioner indoor unit is more flexible.

[0097] The arrangement of one return air inlet 103 can avoid multiple holes in the ceiling and improve the appearance of decoration.

[0098] In some embodiments of the present application, a plurality of filter screens are arranged at the return air inlet 103 to filter and intercept dust and impurities, so as to prevent the fan 200 from adhering too much dust and affecting the air quality.

[0099] The plurality of filter screens can be detachably arranged at the return air inlet 103, so as to facilitate cleaning and reduce maintenance cost.

[0100] Based on the fixed return air flow direction of the return air inlet 103, there is no reverse air flow, so the hair and dust accumulated on the filter screen will not be blown out.

[0101] The indoor unit of the air conditioner comprises an indoor heat exchanger 300 arranged on the side of the fan 200 far from the air outlet.

[0102] The indoor heat exchanger 300 is a temperature control component for adjusting the temperature of the air flow, which transmits the refrigeration or heating effect to the air through heat exchange, so as to exchange heat with the air flow passing through it.

[0103] Based on the flow direction of the air flow entering the shell 100, the air flow entering the shell 100 through the return air inlet 103 first passes through the indoor heat exchanger 300 on the air inlet side of the fan 200, and then flows to the fan 200.

[0104] Therefore, the windward side of the indoor heat exchanger 300 faces the return air inlet 103, and the leeward side of the indoor heat exchanger 300 faces the fan 200, which is used to exchange heat with the air flow passing through it.

[0105] After the air flow entering the shell 100 from the return air inlet 103 first absorbs heat through the indoor heat exchanger 300 to reduce the temperature of the air flow to form a refrigeration air flow, the refrigeration air flow flows from the leeward side of the indoor heat exchanger 300 to the fan 200, and is blown by the fan 200 to the first air outlet 101 to output the refrigeration air flow.

[0106] Or, after the air flow entering the shell 100 from the return air inlet 103 first releases heat through the indoor heat exchanger 300 to increase the temperature of the air flow to form a heating air flow, the heating air flow flows from the leeward side of the indoor heat exchanger 300 to the fan 200, and is blown by the fan 200 to the second air outlet 102 to output the heating air flow.

[0107] Reference is made to the accompanying drawings Figures 1 to 3 In some embodiments of the present application, the indoor heat exchanger 300 is inclined in the shell 100, one end of the indoor heat exchanger 300 is inclined towards the fan 200, and the other end is inclined towards the return air inlet 103.

[0108] The shape of the indoor heat exchanger 300 is approximately plate-shaped, and the indoor heat exchanger 300 is arranged between the return air inlet 103 and the fan 200, which is used to increase the contact area of the air flow flowing from the return air inlet 103 to the fan 200 with the indoor heat exchanger 300 when the air flow passes through the indoor heat exchanger 300, thereby achieving the technical effect of improving the heat treatment efficiency.

[0109] In addition, the inclined indoor heat exchanger 300 also prolongs the contact time with the air flow, thereby achieving the technical effect of improving the heat treatment efficiency.

[0110] Secondly, the inclined indoor heat exchanger 300 saves the internal installation space of the shell 100, expands the possibility of installation position of other components, and makes the overall size of the air conditioner indoor unit diversified,

[0111] In addition, when the indoor heat exchanger 300 exchanges heat with the airflow and absorbs heat, the surface temperature of the indoor heat exchanger 300 is lower than the dew point temperature of the outdoor air.

[0112] At this time, the water vapor contained in the airflow condenses into dew on the wall surface of the indoor heat exchanger 300, and when the dew accumulates to a certain size, the condensate water is finally formed.

[0113] When the indoor heat exchanger 300 is used for refrigeration, the heat absorption will cause the condensate water to frost. Alternatively, when the indoor heat exchanger 300 is used for heating, the heat release will cause the condensate water to scale. Therefore, if the condensate water is not discharged from the indoor heat exchanger 300 in time, it will cause many problems of frosting or scaling.

[0114] By inclining the indoor heat exchanger 300, it is beneficial to make the dew condensed on the indoor heat exchanger 300 slide to one end of the indoor heat exchanger 300 close to the bottom of the shell 100 under the action of gravity. To collect the condensate water and avoid causing the problems of frosting or scaling on the indoor heat exchanger 300.

[0115] Reference is made to the accompanying drawings Figures 7 to 9 In some embodiments of the present application, the indoor heat exchanger 300 is curved or bent to approximate an arc-shaped plate or a bent plate. The direction of the bending or the curving of the indoor heat exchanger 300 is away from the fan 200.

[0116] The technical effect of increasing the contact area of the airflow with the indoor heat exchanger 300 is achieved to improve the heat treatment efficiency.

[0117] In addition, based on the bending or curving of the indoor heat exchanger 300, the contact time with the airflow is prolonged, so that the technical effect of improving the heat treatment efficiency is achieved.

[0118] Reference is made to the accompanying drawings Figure 1 , Figure 4 , Figure 7 , Figure 10 An air conditioner indoor unit includes a water pan 600 arranged on one side of the indoor heat exchanger 300 connected to the bottom of the shell 100, and used for containing the condensate water condensed on the indoor heat exchanger 300.

[0119] One end of the water pan 600 is arranged on the shell 100, and the other end is first extended towards the direction close to the return air inlet 103, and then bent and extended towards the direction close to the indoor heat exchanger to the edge of the return air inlet 103.

[0120] The water pan 600 is curved to form an arc surface extending towards the bottom of the housing 100, for collecting the condensed water flowing down from the indoor heat exchanger 300, to avoid the condensed water from dripping on other components to cause rust and aging. Alternatively, the condensed water is prevented from flowing out of the housing 100, to avoid the indoor environment from being humid and moldy, affecting the comfort of living.

[0121] Referring to the drawings Figure 1 The indoor unit of an air conditioner comprises a first air valve 400 arranged on the housing 100, and the first air valve 400 is used to open or close the first air outlet 101.

[0122] The first air valve 400 is controlled by a first controller, for cooperating with the fan 200 to send air.

[0123] When the fan 200 is used to transport the heating airflow, the first air valve 400 is used to close the first air outlet 101, so as to block the airflow flow between the fan 200 and the first air outlet 101, and the heating airflow can only be output to the lower part of the housing 100 through the second air outlet 102, to avoid the heating airflow from being output to the horizontal direction through the first air outlet 101, thereby causing uneven heating.

[0124] When the fan 200 is used to transport the cooling airflow, the first air valve 400 is used to open the first air outlet 101, so as to allow the airflow flow between the fan 200 and the first air outlet 101, and the cooling airflow can be output to the horizontal direction away from the housing 100 through the first air outlet 101, to make the cooling airflow gradually sink in the room, so that the cool air naturally falls from top to bottom.

[0125] Referring to the drawings Figure 1 The indoor unit of an air conditioner comprises a second air valve 500 arranged on the housing 100, and the second air valve 500 is used to open or close the second air outlet 102.

[0126] The second air valve 500 is controlled by a second controller, for cooperating with the fan 200 to send air. The second controller and the first controller work independently of each other.

[0127] When the fan 200 is used to transport the cooling airflow, the second air valve 500 is used to close the second air outlet 102, and the cooling airflow can only be output to the horizontal direction away from the housing 100 through the first air outlet 101, to avoid the cooling airflow from being output to the lower part of the housing 100 through the second air outlet 102, and the cooling airflow cannot rise, thereby causing uneven cooling.

[0128] When the fan 200 is used to transport the heating airflow, the second air valve 500 is used to open the second air outlet 102, and the heating airflow can be output to the lower part of the housing 100 through the second air outlet 102, to make the heating airflow gradually rise in the room to achieve the effect of uniform heating.

[0129] It should be noted that the first air valve 400 and the second air valve 500 are usually used in cooperation. So that the fan 200 outputs the cooling air flow through the first air outlet 101 only when it is running. Or, the fan 200 outputs the heating air flow through the second air outlet 102 only when it is running.

[0130] In some embodiments of the present application, the first air valve 400 comprises a first flap, one end of which is rotatably arranged on the shell 100.

[0131] The first flap is used to flip open the first air outlet 101 to output the cooling air flow horizontally away from the shell 100. Or, the first flap is used to flip close the first air outlet 101.

[0132] When the first flap is flipped up, the first air outlet 101 is opened, and the cooling air flow driven by the fan 200 is output horizontally away from the shell 100.

[0133] When the first flap is flipped down, the first air outlet 101 is closed to prevent the air flow from being output through the first air outlet 101.

[0134] In some embodiments of the present application, the second air valve 500 comprises a second flap, one end of which is rotatably arranged on the shell 100.

[0135] The second flap is used to flip open the second air outlet 102 to output the heating air flow below the shell 100. Or, the second flap is used to flip close the second air outlet 102.

[0136] When the second flap is flipped up, the second air outlet 102 is opened, and the heating air flow driven by the fan 200 is output below the shell 100.

[0137] When the second flap is flipped down, the second air outlet 102 is closed to prevent the air flow from being output through the second air outlet 102.

[0138] Reference is made to the accompanying drawings Figures 10 to 12 In some embodiments of the present application, the shell 100 is provided with an air outlet on one side.

[0139] The first air valve 400 is rotatably connected to the upper edge of the air outlet, and the second air valve 500 is rotatably connected to the lower edge of the air outlet.

[0140] When the indoor air conditioner is used for cooling operation, the first air valve 400 is turned up, the first air valve 400 is in an open state and the second air valve 500 is in a closed state, the first air outlet 101 is formed at the through opening, and the cooling air flow can only be output to the horizontal direction away from the shell 100 through the first air outlet 101, avoiding the cooling air flow output to the lower part of the shell 100 through the second air outlet 102, and the cooling air flow cannot rise, thereby causing uneven cooling.

[0141] When the indoor air conditioner is used for heating operation, the second air valve 500 is turned down, the first air valve 400 is in a closed state and the second air valve 500 is in an open state, the second air outlet 102 is formed at the through opening, and the heating air flow can only be output to the lower part of the shell 100 through the second air outlet 102, avoiding the heating air flow output to the horizontal direction away from the shell 100 through the first air outlet 101, and the heating air flow accumulates at the top of the room, thereby causing uneven heating.

[0142] When the indoor air conditioner is used for cooling operation, the air flow enters the shell 100 through the return air inlet 103. The air flow entering the shell 100 passes through the indoor heat exchanger 300 for heat exchange, and the air flow cooled by the indoor heat exchanger 300 is guided to the first air outlet 101 and the second air outlet 102 based on the fan 200.

[0143] At this time, the first air valve 400 and the second air valve 500 switch the cooling work of the indoor heat exchanger 300. Among them, the first air valve 400 is opened, and the second air valve 500 is closed.

[0144] In the process of the air flow cooled by the fan 200 to the first air outlet 101 and the second air outlet 102, the cooling air flow can only be output to the horizontal direction away from the shell 100 through the first air outlet 101. The cooling air flow gradually subsides from top to bottom in the room to achieve the technical effect of uniform cooling.

[0145] When the indoor air conditioner is used for heating operation, the air flow enters the shell 100 through the return air inlet 103. The air flow entering the shell 100 passes through the indoor heat exchanger 300 for heat exchange, and the air flow heated by the indoor heat exchanger 300 is guided to the first air outlet 101 and the second air outlet 102 based on the fan 200.

[0146] At this time, the first air valve 400 and the second air valve 500 switch the heating work of the indoor heat exchanger 300. Among them, the first air valve 400 is closed, and the second air valve 500 is opened.

[0147] The heating air current can only be outputted to the lower part of the shell 100 through the second air outlet 102 in the process of the air current sent to the first air outlet 101 and the second air outlet 102 by the fan 200. The heating air current gradually rises to heat the air in the room from bottom to top, and the technical effect of uniform heating is achieved.

[0148] In some other embodiments of the present application, the air conditioner indoor unit comprises a damper module for opening or closing the first air outlet 101 and the second air outlet 102.

[0149] When the air conditioner indoor unit is used for refrigeration operation, the air current enters the shell 100 through the return air inlet 103. The air current entering the shell 100 passes through the indoor heat exchanger 300 for heat exchange, and the air current cooled by the indoor heat exchanger 300 is guided to the first air outlet 101 and the second air outlet 102 based on the fan 200.

[0150] At this time, the damper module opens and closes the first air outlet 101 and the second air outlet 102 to cooperate with the refrigeration work of the indoor heat exchanger 300. The first air outlet 101 is opened, and the second air outlet 102 is closed.

[0151] The cooling air current can only be outputted to the horizontal direction away from the shell 100 through the first air outlet 101 in the process of the air current sent to the first air outlet 101 and the second air outlet 102 by the fan 200. The cooling air current gradually sinks to cool the air in the room from top to bottom, and the technical effect of uniform cooling is achieved.

[0152] When the air conditioner indoor unit is used for heating operation, the air current enters the shell 100 through the return air inlet 103. The air current entering the shell 100 passes through the indoor heat exchanger 300 for heat exchange, and the air current heated by the indoor heat exchanger 300 is guided to the first air outlet 101 and the second air outlet 102 based on the fan 200.

[0153] At this time, the damper module opens and closes the first air outlet 101 and the second air outlet 102 to cooperate with the heating work of the indoor heat exchanger 300. The first air outlet 101 is closed, and the second air outlet 102 is opened.

[0154] The heating air current can only be outputted to the lower part of the shell 100 through the second air outlet 102 in the process of the air current sent to the first air outlet 101 and the second air outlet 102 by the fan 200. The heating air current gradually rises to heat the air in the room from bottom to top, and the technical effect of uniform heating is achieved.

[0155] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0156] The foregoing description has been set forth in conjunction with a particular embodiment and alternatives for the purpose of illustration and explanation. It will be appreciated by those skilled in the art that the above-described examples are not intended to be exhaustive or limiting of the techniques. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, thereby enabling others skilled in the art to best utilize the application, together with various modifications as are suited to the particular use contemplated.

Claims

1. An air conditioner indoor unit characterized by comprising: Comprising: a housing, a return air inlet and an air outlet are arranged on the housing, and the return air inlet and the air outlet are distributed along the circumference of the housing; a fan is arranged in the housing, and the fan is arranged close to the air outlet; an indoor heat exchanger is arranged on the side of the fan away from the air outlet, and the indoor heat exchanger exchanges heat with the airflow passing through it; the air outlet comprises a first air outlet and a second air outlet, the first air outlet and the second air outlet are arranged on the side wall of the housing opposite to the leeward side of the indoor heat exchanger, the first air outlet is located above the second air outlet, the first air outlet is directed horizontally to output refrigeration airflow, and the second air outlet is directed downward to output heating airflow; a first air valve is arranged on the housing to open or close the air outlet of the first air outlet; a second air valve is arranged on the housing to open or close the air outlet of the second air outlet; when the first air valve is closed and the second air valve is opened, the airflow is output from the second air outlet to the lower side of the housing by the operation of the fan; when the second air valve is closed and the first air valve is opened, the airflow is output from the first air outlet to the horizontal direction away from the housing by the operation of the fan. 2.The indoor unit of the air conditioner according to claim 1, characterized by, The return air inlet is arranged on the side wall of the housing opposite to the first air outlet or the second air outlet. 3.The indoor unit of the air conditioner according to claim 1, characterized by, The return air inlet is arranged on the bottom wall of the housing. 4.The air conditioning indoor unit according to any one of claims 2 or 3, characterized by, The indoor heat exchanger is arranged in the housing in an inclined manner, one end of the indoor heat exchanger is inclined towards the direction close to the fan, and the other end is inclined towards the direction close to the return air inlet. 5.The indoor unit of the air conditioner according to claim 4, characterized in that, Further comprising: a water pan is arranged on the side of the indoor heat exchanger connected to the bottom of the housing, and is used to receive the condensed water condensed on the indoor heat exchanger. 6.The indoor unit of the air conditioner according to claim 1, characterized by, The first air valve comprises a first baffle, the first baffle is turned upward to open the first air outlet, so that the refrigeration airflow is output horizontally in the direction away from the housing, and the first baffle is turned downward to close the first air outlet. 7.The indoor unit of the air conditioner according to claim 1, characterized by, The second air valve comprises a second baffle, the second baffle is turned upward to open the second air outlet, so that the heating airflow is output towards the lower side of the housing, and the second baffle is turned downward to close the second air outlet. 8.The indoor unit of the air conditioner according to claim 1, characterized by, The side of the housing where the air outlet is arranged is a through opening, the first air valve is rotationally connected to the upper edge of the through opening, and the second air valve is rotationally connected to the lower edge of the through opening; when the first air valve is opened and the second air valve is closed, the first air outlet is formed at the through opening; when the first air valve is closed and the second air valve is opened, the second air outlet is formed at the through opening. 9.The indoor unit of the air conditioner according to claim 1, characterized by, The fan is located between the first air outlet and the second air outlet, and is used to send air to the first air outlet or the second air outlet.

10. An air conditioner indoor unit characterized by comprising: Comprising: a housing, a return air inlet and an air outlet are arranged on the housing, and the return air inlet and the air outlet are distributed along the circumference of the housing; a fan is arranged in the housing, and the fan is arranged close to the air outlet; an indoor heat exchanger is arranged on the side of the fan away from the air outlet, and the indoor heat exchanger exchanges heat with the airflow passing through it; The air outlet comprises a first air outlet and a second air outlet, the first air outlet and the second air outlet are arranged on the side wall of the shell opposite to the leeward side of the indoor heat exchanger, the first air outlet is located above the second air outlet, the first air outlet faces the horizontal direction to output the refrigeration airflow, and the second air outlet faces the lower side of the shell to output the heating airflow; An air valve module is used to open or close the first air outlet and the second air outlet; When the air valve module closes the first air outlet and opens the second air outlet, airflow is output from the second air outlet to the lower side of the shell by the fan operation; When the air valve module closes the second air outlet and opens the first air outlet, airflow is output from the first air outlet to the horizontal direction away from the shell by the fan operation.

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